Psyche is praying to Aphrodite for mercy and for a miracle. She's appealing to the goddess of love to heal her relationship with Eros, to relieve and heal her from her overwhelming emotional burdens.
Often human beings when we find ourselves in desperate circumstances, we end up turning to the God/Goddess of our understanding to zealously plead our case. We can perhaps also expect to be physically healed from illness or relieved from another malady or circumstance.
Miracles come in all kinds of forms. I try to expect them, but much of the time my change in attitude can be just the kind of miracle I really need, though it might not necessarily be what I want, regardless of how unrealistic I am being. I need to understand, and accept what I can or can't change, and figure out the difference between the two.
Acceptance for me is the key to everything in my life, no matter how difficult the circumstance. That's certainly not to say this is an easy task, not at all, because the things that happen are often very painful, and cause me to be fearful, caused by my lack of faith and trust. At this point I have replaced these with worry, anxiety and unrealistic expectations. It takes a lot of ongoing practice and work, one day at a time, sometimes one minute or second at time to gain faith and spiritual strength.
Realistically, my faith and spiritual strength is contingent on my maintenance of my daily conscious contact with the God of my understanding. I compare it to being rather like a bank account that I make regular deposits to, so I have a resource or emergency fund to rely on when the hard times come.